I believe it's how the girl wants everything, but only loves her boyfriend because of the stuff that she gets from him. So a gold-digger I guess...

The guy on the other hand, just wants her love, but he knows she just wants the money and clothes and jewelry. She doesn't care for him at all. So the guy keeps buying her stuff to keep her happy.

The guy is becoming crazy cuz all the girl is thinking about is her stuff, she doesn't actually care about him at all. Again, a gold-digger....